1. Do we see all of the Moon’s surface from the Earth? Hint: Carefully examine the photographs in Figure 1-21.  Figure 1-21 2. Explain why the waning gibbous Moon, third quarter Moon, and waning...

1. Do we see all of the Moon’s surface from the Earth? Hint: Carefully examine the photographs in Figure 1-21.

 Figure 1-21

2. Explain why the waning gibbous Moon, third quarter Moon, and waning crescent photographs in Figure 1-21 are correctly oriented as seen from Earth.

 Figure 1-21

3. Why is a small crescent of light often observed on the Moon when it is exactly in the new phase?